Troubleshooting & repair, Stator voltage test (continued) – Lincoln Electric COMMANDER SVM145-B User Manual
Page 97
TROUBLESHOOTING & REPAIR
F-41
F-41
COMMANDER 300
STATOR VOLTAGE TEST
(continued)
FIGURE F.17 – OUTPUT RECTIFIER DIODE BRIDGE
WELD WINDING
LEAD CONNECTIONS
4.
Locate the weld winding leads connected to
the three-phase output rectifier diode bridge.
See Figure F.17.
5.
Check for approximately 68VAC from W1 to
W2. Also check from W2 to W3 and from W1
to W3.
6.
If any of these voltages are low or missing
perform the Rotor Flashing and Voltage
Test and also the Rotor Resistance Test.
7.
Also check leads #6H and #5P for loose or
faulty connections to the field bridge. See the
Wiring Diagram.
8.
If the tests in Steps 6 and 7 are OK and the
stator voltages are low or missing, the sta-
tor may be faulty.
9.
Replace the lower front panel and output
leads.
10.
Replace the upper control panel and
secure.
11.
Replace the front left and right case sides.